Workaround error handling in scheme handlers

src/lib/network/schemehandlers/adblockschemehandler.cpp

@@ -19,6 +19,7 @@
 #include "adblockmanager.h"
 #include "emptynetworkreply.h"
 
+#include <QBuffer>
 #include <QUrlQuery>
 #include <QMessageBox>
 #include <QWebEngineUrlRequestJob>
@@ -30,6 +31,10 @@ AdBlockSchemeHandler::AdBlockSchemeHandler(QObject *parent)
 
 void AdBlockSchemeHandler::requestStarted(QWebEngineUrlRequestJob *job)
 {
+    // Ignore the request
+    job->setReply(QByteArray(), new QBuffer());
+    //job->setError(QWebEngineUrlRequestJob::RequestAborted);
+
     const QUrl url = job->requestUrl();
     const QList<QPair<QString, QString> > queryItems = QUrlQuery(url).queryItems();
 
@@ -47,7 +52,6 @@ void AdBlockSchemeHandler::requestStarted(QWebEngineUrlRequestJob *job)
     }
 
     if (subscriptionTitle.isEmpty() || subscriptionUrl.isEmpty()) {
-        job->setError(QWebEngineUrlRequestJob::RequestAborted);
         return;
     }
 
@@ -58,6 +62,4 @@ void AdBlockSchemeHandler::requestStarted(QWebEngineUrlRequestJob *job)
         AdBlockManager::instance()->addSubscription(subscriptionTitle, subscriptionUrl);
         AdBlockManager::instance()->showDialog();
     }
-
-    job->setError(QWebEngineUrlRequestJob::RequestAborted);
 }

src/lib/network/schemehandlers/qupzillaschemehandler.cpp

@@ -44,7 +44,14 @@ QupZillaSchemeHandler::QupZillaSchemeHandler(QObject *parent)
 
 void QupZillaSchemeHandler::requestStarted(QWebEngineUrlRequestJob *job)
 {
-    job->setReply(QByteArrayLiteral("text/html"), new QupZillaSchemeReply(job));
+    QStringList knownPages;
+    knownPages << "about" << "reportbug" << "start" << "speeddial" << "config" << "restore";
+
+    if (knownPages.contains(job->requestUrl().path()))
+        job->setReply(QByteArrayLiteral("text/html"), new QupZillaSchemeReply(job));
+    else
+        job->setReply(QByteArray(), new QBuffer());
+        //m_job->setError(QWebEngineUrlRequestJob::UrlNotFound);
 }
 
 QupZillaSchemeReply::QupZillaSchemeReply(QWebEngineUrlRequestJob *job, QObject *parent)
@@ -54,16 +61,8 @@ QupZillaSchemeReply::QupZillaSchemeReply(QWebEngineUrlRequestJob *job, QObject *
 {
     m_pageName = m_job->requestUrl().path();
 
-    QStringList knownPages;
-    knownPages << "about" << "reportbug" << "start" << "speeddial" << "config" << "restore";
-
-    if (knownPages.contains(m_pageName)) {
-        open(QIODevice::ReadOnly);
-        m_buffer.open(QIODevice::ReadWrite);
-    }
-    else {
-        //m_job->setError(QWebEngineUrlRequestJob::UrlNotFound);
-    }
+    open(QIODevice::ReadOnly);
+    m_buffer.open(QIODevice::ReadWrite);
 }
 
 void QupZillaSchemeReply::loadPage()